CN103658232A - Method for measuring actual rolling reduction of upper roll of roll straightener - Google Patents
Method for measuring actual rolling reduction of upper roll of roll straightener Download PDFInfo
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- CN103658232A CN103658232A CN201210314357.8A CN201210314357A CN103658232A CN 103658232 A CN103658232 A CN 103658232A CN 201210314357 A CN201210314357 A CN 201210314357A CN 103658232 A CN103658232 A CN 103658232A
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- roll
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- top roll
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Abstract
The invention discloses a method for measuring actual rolling reduction of an upper roll of a roll straightener, wherein the roll straightener comprises at least one upper roll and at least two lower rolls, and the method comprises the following steps: step one. sending a calibration workpiece to be between the upper roll and the lower rolls of the roll straightener, and then suspending the roll straightener; step 2. making a first mark and second marks on the calibration workpiece, wherein the first mark corresponds to the upper roll, the second marks correspond to the lower rolls, and the first mark and the second marks are positioned on a first straight line parallel to a rolling direction; step three. restarting the roll straightener until the calibration workpiece leaves the roll straightener, connecting two second marks to obtain a second straight line, and making a third mark corresponding to the upper roll on the second straight line; step four. measuring the distance between each first mark and the third mark corresponding to the first mark, wherein the distance is actual rolling reduction of the upper roll corresponding to the first mark. The method disclosed by the invention can measure the rolling reduction of the upper roll.
Description
Technical field
The present invention relates to roll leveller, particularly, relate to a kind of method of actual drafts of the top roll of measuring roll leveller.
Background technology
Roll leveller is the capital equipment on section bar finishing line, its Main Function is the original curvature of eliminating supplied materials, guarantee that finished section bar is straight, and stacking is neat, also can improve within the specific limits the inhomogeneous flexibility of supplied materials simultaneously, effectively control residual stress, thereby improve the quality of products.
The zero degree drafts of smoothing roll refers to this smoothing roll relatively and drafts during zero degree position.Conventionally utilize aligning exemplar to measure the zero degree drafts of smoothing roll.So-called aligning exemplar refers to part specification to be aligned just the same, and complete straight workpiece.Smoothing roll has just contacted the zero degree position that the position under aligning exemplar and aligning exemplar pressure-less state is smoothing roll.
The factors such as elastic-plastic deformation of the Mechanism Clearance of roll leveller, strain and aligning part itself can cause the actual drafts of the top roll of zero degree drafts and smoothing roll to have larger difference.Straightening roll press quantity before and after overhaul, between new and old smoothing roll changes greatly.Badly influence the process control of straightening process and the control of residual stress, and it is stable to have influence on the glacing flatness of aligning product.
In order to treat better aligning part, align, must control this important technical parameter of drafts, still, now still do not have method fast and effectively to measure the actual drafts of the top roll of smoothing roll.
Summary of the invention
A kind of method that the object of this invention is to provide actual drafts of the top roll of measuring roll leveller, the method can easyly be measured the actual drafts of roll leveller rapidly.
To achieve these goals, a kind of method that the invention provides actual drafts of the top roll of measuring roll leveller, wherein, described roll leveller comprises at least one top roll and at least two lower rolls, described top roll and described lower roll are alternately arranged, be said method comprising the steps of:
Step 1, start described roll leveller, and send between the described top roll and lower roll of roll leveller demarcating workpiece, then described roll leveller is suspended;
Step 2, on described demarcation workpiece, make the first mark and the second mark, described the first mark be positioned at described top roll perpendicular to roll to the extended line of diameter on, described the second mark be positioned at described lower roll perpendicular to roll to the extended line of diameter on, and described the first mark and described the second mark be positioned at be parallel to roll to the first straight line on, and described the second mark is positioned at the centre position of the thickness of described demarcation workpiece;
Step 3, restart described roll leveller until described demarcation workpiece leaves described roll leveller, connect any two described the second marks to obtain the second straight line, at this second straight line, make at least one the 3rd mark, this at least one the 3rd mark is corresponding one by one with described at least one top roll, and described in each the 3rd mark be all positioned at the described top roll corresponding with the 3rd mark perpendicular to roll to the extended line of diameter on;
Step 4, measure the distance between the first mark described in each and described the 3rd mark corresponding with this first mark, this distance is the actual drafts of the described top roll corresponding with this first mark.
Preferably, described step 2 is also included in to be done on described demarcation workpiece, paster to be set before described the first mark and described the second mark, and then on described paster, makes described the first mark and described the second mark.
By method of the present invention, can observe be intuitively marked at corresponding with top roll of demarcating on workpiece and align the variation after front and aligning, thereby can measure easily the drafts of top roll.
Other features and advantages of the present invention partly in detail are described the specific embodiment subsequently.
Accompanying drawing explanation
Accompanying drawing is to be used to provide a further understanding of the present invention, and forms a part for description, is used from explanation the present invention, but is not construed as limiting the invention with the specific embodiment one below.In the accompanying drawings:
Fig. 1 is the schematic diagram of aligning demarcating workpiece when roll leveller has a top roll, two lower rolls; With
Fig. 2 demarcates the schematic diagram of workpiece after the roll leveller aligning shown in Fig. 1;
Fig. 3 is when roll leveller has a plurality of top rolls, a plurality of lower roll, the schematic diagram of aligning demarcating workpiece when top roll is depressed;
Fig. 4 demarcates the schematic diagram of workpiece after the roll leveller aligning shown in Fig. 3.
Description of reference numerals
10 top roll 11 first top rolls
12 second top roll 13 the 3rd top rolls
14 the 4th top rolls 20 are demarcated workpiece
30 lower roll 31 first lower rolls
32 second lower roll 33 the 3rd lower rolls
34 the 4th lower roll A the first marks
The first mark that A1 is corresponding with the first top roll
The first mark that A2 is corresponding with the second top roll
The first mark that A3 is corresponding with the 3rd top roll
The first mark that A4 is corresponding with the 4th top roll
B the second mark
The second mark that B1 is corresponding with the first lower roll
The second mark that B2 is corresponding with the second lower roll
The second mark that B3 is corresponding with the 3rd lower roll
The second mark that B4 is corresponding with the 4th lower roll
A ' the 3rd mark
The 3rd mark that A1 ' is corresponding with the first top roll
The 3rd mark that A2 ' is corresponding with the second top roll
The 3rd mark that A3 ' is corresponding with the 3rd top roll
The 3rd mark that A4 ' is corresponding with the 4th top roll
L 1 first straight line
L2 the second straight line
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.Should be understood that, the specific embodiment described herein only, for description and interpretation the present invention, is not limited to the present invention.
As shown in Figures 1 to 4, the invention provides a kind of method of actual drafts of the top roll of measuring roll leveller, wherein, described roll leveller comprises at least one top roll and at least two lower rolls, and top roll and lower roll are alternately arranged, be said method comprising the steps of:
Step 1, start described roll leveller, and send between the top roll 10 and lower roll 30 of roll leveller demarcating workpiece 20, then described roll leveller is suspended;
Step 2, make the first mark and the second mark demarcating on workpiece 20, the first mark be positioned at top roll 10 perpendicular to roll to the extended line of diameter on, the second mark be positioned at lower roll perpendicular to roll to the extended line of diameter on, and the first mark and the second mark be positioned at be parallel to roll to the first straight line L1 upper, and the second mark is positioned at the centre position of the thickness of demarcating workpiece 20;
Step 3, restart described roll leveller and leave described roll leveller until demarcate workpiece, connect any two described the second marks to obtain the second straight line L2, at this second straight line L2, make at least one the 3rd mark, this at least one the 3rd mark is corresponding one by one with at least one top roll, and each the 3rd mark be all positioned at the top roll corresponding with the 3rd mark perpendicular to roll to the extended line of diameter on;
Step 4, measure the distance d between the first mark described in each and described the 3rd mark corresponding with this first mark, this is the actual drafts of the described top roll corresponding with this first mark apart from d.
In the present invention, described " roll to " refers to the direction of the X-axis in Fig. 1 and Fig. 2,, demarcates workpiece mobile direction between top roll and lower roll that is.Should be understood that, when the drafts of the top roll of roll leveller is zero, the demarcation workpiece 20 of " directly " just in time can be passed through in the gap between top roll and lower roll.The demarcation workpiece 20 that is somebody's turn to do " directly " is identical with demarcation workpiece 20 shapes, structure after aligning.
In the present invention, a top roll 10 and two lower rolls 30 can be set, as shown in Figures 1 and 2.When utilizing roll leveller to align demarcating workpiece, before entering between top roll 10 and lower roll 30, demarcation workpiece 20 there is certain bending.
In step 2, by after demarcating workpiece 20 and sending between the top roll 10 of roll leveller and lower roll 30,10 pairs of top rolls are demarcated workpiece 20 and are applied certain pressure, make to demarcate workpiece 20 and deform.In step 3, demarcate workpiece 20 and leave after roll leveller, demarcate workpiece 20 plastic deformation occurs, aligned, therefore, also there is distortion in the first straight line L1 being drawn in step 2, and the first mark A corresponding with top roll 10 also changes with the distortion of the first straight line L1.The second mark B is positioned at the centre position of the thickness of demarcating workpiece 20, that is, the second mark B is positioned on the neutral line of demarcating workpiece 20, and meanwhile, the second mark B is also corresponding to lower roll 30.In the process of aligning, the position of central core can not become, and the position of lower roll 30 can not become yet, and therefore, in the process of whole aligning, the position of the second mark B can change hardly.Therefore, the distance d between the first mark A and the 3rd mark A ' corresponding with this first mark A is the actual drafts of the top roll 10 corresponding with this first mark A.
In the method for the actual drafts of the top roll of measurement roll leveller provided by the present invention, by the distance d between the first mark A of recording and the 3rd mark A ' corresponding with this first mark A, obtain the drafts of top roll 10, in measuring process, be not subject to the impact of other factors such as Mechanism Clearance of roll leveller, so error is less.And, utilizes and easily to realize the method for actual drafts of demarcating the top roll that the method for making the first mark A, the second mark B and the 3rd mark A ' on workpiece 20 measures roll leveller is comparatively simple, and whole measuring process is consuming time shorter.
Method of the present invention is also applicable to have the situation of a plurality of top rolls and a plurality of lower rolls.The situation with the first top roll 11, the second top roll 12, the 3rd top roll 13, the 4th top roll 14 and the first lower roll 31, the second lower roll 32, the 3rd lower roll 33, the 4th lower roll 34 has been shown in Fig. 3 and Fig. 4.
Utilize method of the present invention can measure each the actual drafts in the first top roll 11 as the roll leveller in Fig. 3, the second top roll 12, the 3rd top roll 13, the 4th top roll 14.
For example, in determining Fig. 3 during the actual drafts of the first top roll 11 of the leftmost side, after step 1 is sent in the first top roll 11, the second top roll 12, the 3rd top roll 13, the 4th top roll 14 and the first lower roll 31, the second lower roll 32, the 3rd lower roll 33, the 4th lower roll 34 by demarcation workpiece, carry out step
In step 2, demarcating the first mark A1 of having made on workpiece 20 corresponding to the first top roll 11, corresponding to the first mark A2 of the second top roll 12, corresponding to the first mark A3 of the 3rd top roll 13, corresponding to the first mark A4 of the 4th top roll 14 with corresponding to the second mark B1 of the first lower roll 31, corresponding to the second mark B2 of the second lower roll 32, corresponding to the second mark B3 of the 3rd lower roll 33, corresponding to the second mark B4 of the 4th lower roll 34.In step 3, demarcating the 3rd mark A1 ' that made on workpiece 20 corresponding to the first top roll 11, corresponding to the 3rd mark A2 ' of the second top roll 12, corresponding to the 3rd mark A3 ' of the 3rd top roll 13, corresponding to the 3rd mark A4 ' of the 4th top roll 14.As mentioned above, corresponding to the second mark B1 of the first lower roll 31, corresponding to the second mark B2 of the second lower roll 32, corresponding to the second mark B3 of the 3rd lower roll 33, be arranged on the neutral line of demarcating workpiece 20 corresponding to the second mark B4 of the 4th lower roll 34, therefore, the line of any two the second marks is all being demarcated on the neutral line of workpiece 20.At the extended line of the diameter perpendicular to the second straight line L2 of the first top roll 11, the second top roll 12, the 3rd top roll 13, the 4th top roll 14 and the intersection point place of the second straight line L2, make the 3rd mark A1 ' corresponding to the first top roll 11, corresponding to the 3rd mark A2 ' of the second top roll 12, corresponding to the 3rd mark A3 ' of the 3rd top roll 13, corresponding to the 3rd mark A4 ' of the 4th top roll 14.
In step 4, the the first mark A1 recording and the distance between the 3rd mark A1 ' are the actual drafts of top roll 11, distance between the first mark A2 and the 3rd mark A2 ' is the actual drafts of top roll 12, distance between the first mark A3 and the 3rd mark A3 ' is the actual drafts of top roll 13, and the distance between the first mark A4 and the 3rd mark A4 ' is the actual drafts of top roll 14.
In the present invention, can utilize marking pen directly on demarcation workpiece 20, to make the first mark A, the second mark B and the 3rd mark A '.And the first mark A, the second mark B and the 3rd mark A ' can be also short line segment for point.
For the ease of clearing up and being convenient to observe the first mark, the second mark and the 3rd mark, in the present invention, step 2 can also be included in to be done on demarcation workpiece 20, paster to be set before the first mark and the second mark, and then on paster, makes the first mark and the second mark.Can utilize chalk on paster, to make the first mark, the second mark and the 3rd mark, after measurement, described paster be removed from demarcating workpiece 20.
Can under normal aligning production status, measure the actual drafts of the top roll of straightener in the present invention.That is, can utilize workpiece to be aligned to measure the actual drafts of the top roll of straightener.By method of the present invention, can observe be intuitively marked at corresponding with top roll of demarcating on workpiece and align the variation after front and aligning, thereby can measure easily the drafts of top roll.
Below describe by reference to the accompanying drawings the preferred embodiment of the present invention in detail; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition each the concrete technical characterictic described in the above-mentioned specific embodiment, in reconcilable situation, can combine by any suitable mode.For fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible combinations.
In addition, between various embodiment of the present invention, also can be combined, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (2)
1. the method for actual drafts of measuring the top roll of roll leveller, wherein, described roll leveller comprises at least one top roll and at least two lower rolls, described top roll and described lower roll are alternately arranged, be said method comprising the steps of:
Step 1, start described roll leveller, and will demarcate workpiece (20) and send between the described top roll and lower roll of roll leveller, then described roll leveller is suspended;
Step 2, at upper the first mark and the second mark done of described demarcation workpiece (20), described the first mark be positioned at described top roll perpendicular to roll to the extended line of diameter on, described the second mark be positioned at described lower roll perpendicular to roll to the extended line of diameter on, and described the first mark and described the second mark be positioned at be parallel to roll to the first straight line (L1) upper, and described the second mark is positioned at the centre position of the thickness of described demarcation workpiece (20);
Step 3, restart described roll leveller until described demarcation workpiece (20) leaves described roll leveller, connect any two described the second marks to obtain the second straight line (L2), at this second straight line (L2), make at least one the 3rd mark, this at least one the 3rd mark is corresponding one by one with described at least one top roll, and described in each the 3rd mark be all positioned at the described top roll corresponding with the 3rd mark perpendicular to roll to the extended line of diameter on;
Step 4, measure the distance (d) between the first mark described in each and described the 3rd mark corresponding with this first mark, this distance (d) is the actual drafts of the described top roll corresponding with this first mark.
2. method according to claim 1, wherein, described step 2 is also included in to be done on described demarcation workpiece (20), paster to be set before described the first mark and described the second mark, and then on described paster, makes described the first mark and described the second mark.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210314357.8A CN103658232B (en) | 2012-08-30 | 2012-08-30 | Method for measuring actual rolling reduction of upper roll of roll straightener |
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| CN201210314357.8A CN103658232B (en) | 2012-08-30 | 2012-08-30 | Method for measuring actual rolling reduction of upper roll of roll straightener |
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| CN103658232A true CN103658232A (en) | 2014-03-26 |
| CN103658232B CN103658232B (en) | 2015-06-24 |
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Cited By (4)
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| CN104034235A (en) * | 2014-06-27 | 2014-09-10 | 攀钢集团攀枝花钢钒有限公司 | Gauge and method for measuring real rolling reduction of heavy rail straightening machine |
| CN108645318A (en) * | 2018-05-07 | 2018-10-12 | 攀钢集团攀枝花钢钒有限公司 | The manufacturing method of straightening roll between centers distance measurement method and survey tool and tool |
| CN108655208A (en) * | 2018-05-29 | 2018-10-16 | 攀钢集团攀枝花钢钒有限公司 | Straightener straightened state investigating method and straightener straightened state TT＆C system |
| WO2020062362A1 (en) * | 2018-09-28 | 2020-04-02 | 苏春光 | Straightening method, straightening device applying same and guide rail straightening machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108655208A (en) * | 2018-05-29 | 2018-10-16 | 攀钢集团攀枝花钢钒有限公司 | Straightener straightened state investigating method and straightener straightened state TT＆C system |
| CN108655208B (en) * | 2018-05-29 | 2019-11-19 | 攀钢集团攀枝花钢钒有限公司 | Straightener straightened state investigating method and straightener straightened state TT&C system |
| WO2020062362A1 (en) * | 2018-09-28 | 2020-04-02 | 苏春光 | Straightening method, straightening device applying same and guide rail straightening machine |
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| CN103658232B (en) | 2015-06-24 |
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